Apparent Lack of Nucleotide Sequence Homology Between the Satellite and Genome RNA Species of Tomato Black Ring Virus

In hybridization experiments using complementary DNA copies, no homology was detected between RNA-3 and either of the genome RNA species of tomato black ring virus. It is estimated that sequences amounting to 160 nucleotide residues shared by RNA-3 and RNA-1, or to 120 nucleotide residues shared by RNA-3 and RNA-2 would have been detected. It is concluded that RNA-3 is a true satellite RNA.